Disk-talking-machine blank.



- No. &14,053. 'PATENTED MAR. e, 1906.

.ILKLEIN.

DISK TALKING MACHINE BLANK. APPLIOATIOI r1L1n'nn.9. 1904.

CC&

' WTNESSES:

IN VEN TOR.

' UNITED STATES PATENT OFFICE.

RUDOLPH KLE'IN, -OF- NEW YORK, N. YJ, ASSIGNOR OF ONE-FIFTH TO r BYRON G. HARLAN, OF ORANGE, NEW JERSEY.

DISK-TALKING-MACHINE 'BLANK.

Speciflcation of Letters Patent.

Patentod Inch 6, 1906.

To `abll whom it may conaern:

Be it known that I, RUDoLrH KLEIN, a citizen of .the United States, residin at New York city, county and State of ew York, have invented a new and useful Improvement in Disk-Talking- Machine Blanks, of which the following isa specification. A

The object of my invention is to rovide a ready means of producing disk-ta -machine records of a wax. composition or the like in such a manner as to enable said records to be utilized in connection with the 'usual apparatus employed for reproducing the` permanent records of trade and at the same time protect such records from accidental inju through being scratched or rubbed toget er. M device also secures the ready tracking of t e recording-Stylus in makng said sound-records on my im roved blanks, resulting in' the' sound-recor being made in the form of a disk. I attain these objects by the means illustrated in the accompanying drawings, which form part of which Figure 1 shows a to or plan view of one form of my improved evice. Fig.'2 shows a cross-section on line G H of Fig.`,1.

Fi 1 shows a disk A with two volute spira s C andD'thereon arallel with each other, one of said spirals 8 being filled'with v a waX com osition or the like.

volute spiral o`n the this specification, and in.

Same figure, B shows a ole in center of said plate or disk.

The operation' or use of my improved disk is as follows: The diskA, Fig. 1', s placed'on the turn-table of what is known as a disk talking-machine, and the stylus of the recording device 'is placed upon the volute curve C, while an arm, car 'ng a pointed end bent down into the paral el s iral or volite D, aids in keepingthe recor ing device 'true in track C.

What I claim as mly invention, and desire to secure by Letters atent, is-

-1. In a disk-blank for talking-machines, a rigid disk with multiple arallel volute spirals thereon, one of which sprals shall have therein a wax-like-record composition or' material( 2. In a disk-blank for' talking-mach nes,-a

rigid disk with multiple parallel volute spirals thereon, all but one of said volute spirals having therein a wax-like composition or record material.

RUDOLPH KLEIN.

' V itnesses;

L. W. AIGELTINGER, SAMUEL J. REED'. 

